Download or read book The role of ligneous vegetation for livestock nutrition in the sub Sahelian and Sudanian zones of West Africa Potential effects of climate change written by Nouhoun Zampaligre and published by Cuvillier Verlag. This book was released on 2012-10-17 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kurzbeschreibung Aufgrund der starken Abhängigkeit von Niederschlägen und natürlichen Ressourcen gelten Ackerbau und Viehzucht im subsaharischen westlichen Afrika als besonders anfällig für klimatischen Wandel. Verstärkt wird dies durch das geringe Anpassungsvermögen der lokalen Bauern und Viehzüchter an die neuen Umstände. Das Ziel der vorliegenden Arbeit war daher die Untersuchung der zu erwartenden Einflüsse zukünftiger Klimaveränderungen auf die Tierernährung und Weidenutzung in der südlichen Sahelzone und der nördlichen und südlichen Sudanzone in Burkina Faso. Um dies zu erreichen, wurden von 2009 bis 2010 drei Studien durchgeführt; dafür ausgewählt wurden die Dörfer und Dorfgebiete (100 km²) von Taffogo (südliche Sahelzone), Nobere und Safane (nördliche Sudanzone) und Sokouraba (südliche Sudanzone). Die Wahl von zwei Dörfern in der nördlichen Sudanzone war begründet durch die Dichotomie zwischen intensiver landwirtschaftlicher Nutzung und hoher Bevölkerungsdichte in Safane und geringer ackerbaulicher Nutzungsintensität in der Pufferzone zwischen dem Dorf Nobere und dem Nationalpark Pô. Unter Verwendung globaler Navigations- (GPS) sowie Geoinformationssysteme (GIS) wurden räumliche und zeitliche Veränderungen in der Weidenutzung sowie im Fressverhalten von Rindern, Schafen und Ziegen in den vier Dörfern untersucht. Hierzu wurden pro Dorf jeweils drei Herden der genannten Haustierarten über einen Zeitraum von einem Jahr beobachtet (Kapitel 2). Die längsten Weidewege (km/Tag) waren während der heißen Trockenzeit (März – Mai) festzustellen. Schafe (18,8) und Rinder (17,4) legten dabei signifikant größere Distanzen zurück als Ziegen (10,5; p0,05). Die tägliche Weidedauer lag zwischen sechs und elf Stunden und war bei den Rindern länger als bei den kleinen Wiederkäuern (p0,05). Artunabhängig wurden 52–72% des Weidetages mit der Aufnahme von Futter verbracht. In der südlichen Sahelzone verbrachten die Herden mehr Zeit pro Tag auf den Weideflächen und legten zudem größere Distanzen zurück als in den beiden sudanischen Zonen (p0,01); die effektive Fresszeit war dagegen in der südlichen Sudanzone am längsten (p0,05). Eine proportionale Abnahme von Ruhephasen war während der Regenzeit (Juni - Oktober) im Vergleich zur kühlen (November - Februar) sowie heißen Trockenzeit zu beobachten (p0,05), während gleichzeitig der proportionale Anteil der Marschzeit zunahm. Unabhängig von der Jahreszeit erfolgte die Futteraufnahme in der südlichen Sahelzone bei allen drei Arten signifikant häufiger in bewaldeten Bereichen (Baumdeckung 5-10% oder Strauchdeckung 10%), während sie sich in den beiden sudanischen Zonen vornehmlich auf Waldflächen (Baumdeckung 10%) konzentrierte. Daraus lässt sich ableiten, dass bei gleichzeitiger Ausdehnung von landwirtschaftlich genutzten Flächen verbleibende Waldinseln und baumreiche Bereiche, einschließlich älterer (und damit buschbestandener) Brachflächen wertvolle Weidegründe für die lokalen Wiederkäuerherden darstellen. Es sollten daher Maßnahmen ergriffen werden, um dem Rückgang solch bewaldeter Bereiche entgegenzuwirken und gleichzeitig den Schutz sowie die (Wieder-)Anpflanzung dürretoleranter Futterbäume aktiv zu fördern. In einer weiteren Studie (Kapitel 3) wurde die Futterselektion der genannten Herden weidender Rinder und kleiner Wiederkäuer untersucht, und 75 Tierhalter zum Weideverhalten ihrer Tiere sowie zur Behandlung von Tierkrankheiten mit traditionellen pflanzlichen Medikamenten befragt. Ziel war es, die Auswirkungen des Klimawandels auf die Ernährung und Gesundheit der Nutztiere zu erfassen. Über alle drei untersuchten agro-ökologischen Zonen hinweg zeigen die Ergebnisse eine bevorzugte Nutzung holziger Futterpflanzen durch die drei Tierarten. Der Anteil der auf Selektion solcher Pflanzen verwendeten Zeit an der Gesamfreßzeit war dabei bei Ziegen signifikant höher als bei Schafen und Rindern (p
Download or read book The Role of Ligneous Vegetation for Livestock Nutrition in the Sub Sahelian and Sudanian Zones of West Africa written by Nouhoun Zampaligré and published by . This book was released on 2012 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pastoralism and Socio technological Transformations in Northern Benin written by Georges Djohy and published by Göttingen University Press. This book was released on 2017 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pastoralists throughout Africa face increasing pressures. In Benin, governmental development policies and programmes in crop farming are changing power relations between herders and farmers to favour the latter. How are the Fulani pastoralists responding to these threats to their existence? Georges Djohy explores the dynamics in local use of natural resources and in inter-ethnic relations resulting from development interventions. He combines the approaches of science and technology studies – looking at the co-construction of society and technology – and political ecology – looking at the power relations shaping the dynamics of economic, environmental and social change – so as to throw light on the forces of marginalisation, adaptation and innovation at work in northern Benin. Having worked there for many years, Djohy has been able to uncover gradual processes of socio-technological change that are happening “behind the scenes” of agricultural development involving mechanisation, herbicide use, tree planting, land registration and natural resource conservation. He reveals how farmers are using these interventions as “weapons” in order to gain more rights over larger areas of land, in other words, to support indigenous land grabbing from herders who had been using the land since decades for grazing. He documents how the Fulani are innovating to ensure their survival, e.g. by using new technologies for transport and communication, developing new strategies of livestock feeding and herd movement, and developing complementary sources of household income. The Fulani are organising themselves from local to national level to provide technological and socio-cultural services, manage conflicts and gain a stronger political voice, e.g. to be able to achieve demarcation of corridors for moving livestock through cultivated areas. They even use non-functioning mini-dairies – another example of development intervention – to demonstrate their modernity and to open up other opportunities to transform their pastoral systems. This book provides insights into normally hidden technical and social dynamics that are unexpected outcomes of development interventions.
Download or read book Browse in Africa written by and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Browse in Africa written by Henri Noël Le Houérou and published by . This book was released on 1980 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Balanites Aegyptiaca written by John B. Hall and published by . This book was released on 1991 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub Saharan Africa Conference summary written by J. M. Powell and published by ILRI (aka ILCA and ILRAD). This book was released on 1994-01-01 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference summary; Summary of plenary sessins; Opening session; Interactions between animals and plants; Interactions between animals and soils; Interactions between plant and soils; Nutrient cycling in mixed farming systems; Modelling nutrient cycles; Closing session; Summary of focus group sessions; Introduction; Animal-plant interactions; Animal-soil interacions; Socio-economic dimensions in nutrient cycling.
Download or read book Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub Saharan Africa Technical papers written by J. M. Powell and published by ILRI (aka ILCA and ILRAD). This book was released on 1994-01-01 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical papers. Setting the scene. Interactions between animals and plants. Interactions between animals and soils. Interactions between plants and soils. Nutrient cycling in mixed farming systems. Modelling nutrient cycles in plant/animal/soil systems.
Download or read book Tropical Forestry Papers written by and published by . This book was released on 2004 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acacia Senegal and the Gum Arabic Trade written by Christopher W. Fagg and published by . This book was released on 2004 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Grazing Regimes on Cattle Nutrition and Performance and Vegetation Dynamics in Sahelian Rangelands written by Augustine Abioye Ayantunde and published by . This book was released on 1998 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1988 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Agroforestry written by P. K. R. Nair and published by Springer Science & Business Media. This book was released on 1993-07-31 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This college-level textbook summarizes the state of current knowledge in the rapidly expanding field of agroforestry. The book, organized into 25 chapters in six sections, reviews the developments in agroforestry during the past 15 years and describes the accomplishments in the application of biophysical (plant and soil related) and socioeconomic sciences to agroforestry. Although the major focus of the book is on the tropics, where the practice and potential of agroforestry are particularly promising, the developments in temperate zone agroforestry are also discussed. This text is recommended for students, teachers, and researchers in agroforestry, farming systems, and tropical land use.
Download or read book Trees and Shrubs of the Sahel written by Hans-Jürgen von Maydell and published by Balogh Scientific Books. This book was released on 1990 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agroforestry Parklands in Sub Saharan Africa written by Jean-Marc Boffa and published by Food & Agriculture Org.. This book was released on 1999 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document attempts to present the current state of knowledge on agroforestry parkland systems. These systems, which for many local populations are very important for food security, income generation and environmental protection, are found primarily in the semi-arid and sub-humid zones of West Africa. The document first provides a thorough description of their distribution and diversity and discusses different ways of classifying them. It also presents data on current trends in parkland development and assesses determining factors. The document then provides an in-depth analysis of biophysical tree-soil-crop interactions and the factors regulating them, and describes various improved parkland management techniques. It goes on to examine the strength and limitations of institutional arrangements as well as the constraints imposed by Sahelian forest policies on the sustainable management of parklands. The production, use and marketing of parkland products is reviewed with an emphasis on their contribution to food security, local and national income as well as social values. Overall costs and benefits of the practice of parkland agroforestry are evaluated. In conclusion, the document identifies crucial research needs and promising avenues for promoting sustainable management of parkland systems.
Download or read book Vegetation Dynamics written by R. Knapp and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the International Botanical Congress in Edinburgh, 1964, Mrs. 1. M. WEISBACH-J UNK of The Hague discussed a plan for preparation by her publishing company (Dr. W. Junk b.v.) of an international Handbook of Vegetation Science. She proposed a series that should give a comprehensive survey of the varied directions within this science, and their achievements to date as well as their objectives for the future. The challenge of such an enterprise, and its evident value for the further development of vegetation research, induced the undersigned after some consideration to accept the offer of the honorable but also burdensome task of General Editor. The decision was encouraged by a well formulated and detailed outline for the Handbook worked out by the Dutch phytosociolo gists J. J. BARKMAN and V. WESTHOFF. A circle of scholars from numerous countries was invited by the Dr. Junk Publishing Com pany to The Hague in January 1966 to draw up a list of editors and contributors for the parts of the Handbook. The outline and list have served since for the organization of the Handbook, with no need for major change. The different burdens of editors and authors have compelled quite different timings for completion of the individual sections.
Download or read book Forest Landscape Restoration written by John Stanturf and published by Springer Science & Business Media. This book was released on 2012-11-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Restoration ecology, as a scientific discipline, developed from practitioners’ efforts to restore degraded land, with interest also coming from applied ecologists attracted by the potential for restoration projects to apply and/or test developing theories on ecosystem development. Since then, forest landscape restoration (FLR) has emerged as a practical approach to forest restoration particularly in developing countries, where an approach which is both large-scale and focuses on meeting human needs is required. Yet despite increased investigation into both the biological and social aspects of FLR, there has so far been little success in systematically integrating these two complementary strands. Bringing experts in landscape studies, natural resource management and forest restoration, together with those experienced in conflict management, environmental economics and urban studies, this book bridges that gap to define the nature and potential of FLR as a truly multidisciplinary approach to a global environmental problem. The book will provide a valuable reference to graduate students and researchers interested in ecological restoration, forest ecology and management, as well as to professionals in environmental restoration, natural resource management, conservation, and environmental policy.
